abrasive produced by crushing bearing steel . steel grit is used for descaling, coating and corrosion removal, and surface etching. steel grit is tempered to three different hardnesses. the hardest material gh, isdesigned for use exclusively in air blasting equipment. the two softer materials, gl and gp, may also be used in centrifugal wheel blast equipment. application 1.shipbuilding with grit blasting, oxygenated surface of ship hull is descaled,then improves the coating quality. 2.container with air blasting, container production efficiency is improved. certain roughness is obtained to improve coating quality 3.oil and gas pipeline with grit blasting, pipelines get rust resistance and anti-corrosion. 4.locomotive and wagon with blasting, coating quality is greatly improved. 5.surface pre-treatment and casting steel grit can also be used for surface pre-treatment, cleaning and descaling for casting parts. 6.cold rolled steel special steel grit will keep the production ability and certain roughness of cold roll. quality test sgs test production ...